CVE-2020-35710

Public Exploit

Description

Parallels Remote Application Server (RAS) 18 allows remote attackers to discover an intranet IP address because submission of the login form (even with blank credentials) provides this address to the attacker's client for use as a "host" value. In other words, after an attacker's web browser sent a request to the login form, it would automatically send a second request to a RASHTML5Gateway/socket.io URI with something like "host":"192.168.###.###" in the POST data.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.54%
Third-Party Advisory twitter.com Third-Party Advisory elladodelmal.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.elladodelmal.com/2020/12/blue-team-red-team-como-parallels-ras.html third party advisory exploit
https://twitter.com/amadapa/status/1342407005110218753 third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-35710?
CVE-2020-35710 has been scored as a medium severity vulnerability.
How to fix CVE-2020-35710?
To fix CVE-2020-35710, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-35710 being actively exploited in the wild?
It is possible that CVE-2020-35710 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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